Crystal structure of 2-(1H-imidazol-4-yl)ethanaminium chloride

Imene Belfilali , Siham Yebdri , Samira Louhibi , Leila Boukli-Hacene , Thierry Roisnel (1)

1 ISCR - Institut des Sciences Chimiques de Rennes

The title mol-ecular salt, C5H10N3 (+)·Cl(-), was obtained as by-product in the attempted synthesis of a histamine derivative. The terminal amino group of the starting material is protonated. The Cimidazole-C-C-N(H3)(+) group in the cation is in an anti conformation with a torsion angle of 176.22 (10)°. In the crystal, cations and anions are linked via N-H(midline ellipsis)N and N-H-Cl hydrogen bonds, forming a two-dimensional network parallel to (10-1). A single weak C-H(midline ellipsis)Cl hydrogen bond completes a three-dimensional network

Mots clés: chloride ion; hydrogen bonding; histamine; crystal structure; imidazole; protonation

Domaines: Chimie

Imene Belfilali, Siham Yebdri, Samira Louhibi, Leila Boukli-Hacene, Thierry Roisnel. Crystal structure of 2-(1H-imidazol-4-yl)ethanaminium chloride. Acta crystallographica Section E : Crystallographic communications [2015-..], 2015, 71 (5), pp.o301--2. ⟨10.1107/S2056989015006866⟩. ⟨hal-01156435⟩